RT Journal Article SR Electronic T1 Arts as Epistemology: Enabling Children to Know What They Know JF Harvard Educational Review JO herp FD Harvard Educational Press SP 40 OP 51 DO 10.17763/haer.61.1.l7518t5kh06710n4 VO 61 IS 1 A1 Gallas, Karen YR 1991 UL http://harvardeducationalreview.org/content/61/1/40.abstract